Carriage-jack



(No Model.) I

A. J. CHURCH.v

CARRIAGE JACK. No. 287,828. f' Patented 00A. 80,1888.

UNITED STATES t PATENT OFFICE.

` 'ANDREW J. CHURCH, or SHEEBCRN, MASSACHUSETTS.

CARRIAGE-JACK.

SPECIFICATION forming part of Letters Patent No. 287,625, dated October 30, 1883.

` v Application filed September 20, 1883. (No model.)

.said invention appertains to make land use the same, reference being had to the accompanying drawings, forming/a part of this specification,

in which f y Figure l is an isometrical perspective view of my improved carriagejack, and Fig. 2 a vertical longitudinal section of the same.

Like letters and figures of reference indicate corresponding parts inthe different fguresof the drawings.

My invention relates more especially to that class of carriage-j acks which are provided with levers, and are designed for use in lifting the axle of the carriage to raise a Wheel from thev ground, in order that` it may be removed from the spindle for greasing or repair; and it consists in a novel construction and arrangement of the parts, as hereinafterfmore fully set forth land claimed, by which a simpler, cheapf r, and

more effective device of this character is pro` duced than is now ink general use.

The nature and operation of the improve- `ment' will be readily'understood by all conversant with such .matters from the following explanation, its extreme simplicity rendering an elaborate descriptionunnecessary.

In the drawings, A represents the base; B B, the standards or uprights; C, the lever; D, the retaining-bar, and E the lifting. bar or slide.

The standards have their lower ends framed into the base, and are arranged in such a manner as to leave a space between them sufficiently Wide to receive thelever C and bars E D.

The bar E is provided with an elongated Slot, x, and a series of notches, m, and is tted to work vertically betweenthe standardsv in the head of the jack on the pins f f, which pass laterally through said slot and are supported in the standards. n

The lever C is pivoted at g in the body of the jack, and jointed to its short arm at h there is a vertically-arranged pitman or rod,

l G, lwhich passes through a slot, z', in the bar E, and'has its upper end jointed to said lastnamed bar at t.

The retaining-bar D is provided on itsv under side at its inner end with a series of serrations or teeth, Z, adapted to engage a pin or stop, n, disposed .in the standards B, its outer 1 end being pivoted at r inthe outerend of the lever C.

. A cross-beam, H, is secured between the standards to hold them properly apart, the

beam being connected with the base A by an inclined brace, L, for steadying the standards and preventing them the base.

In the use of my improvement the top of the bar E, or oneof thenotches m, is placed under the axle of the carriage, and the outer end of the lever 'C depressed until the wheel is raised the desired distance from the ground. The teeth `Z are so formed as to incline toward the outer` end of the'lever, and when the le. ver is forced downto raise the superincumbent from working loose in weight on the bar E the teeth slide over the pin a, and when the lever is releasedthe teeth engage the pin and lock the lever, thereby preventing the bar E from descending, and holding the wheel in an elevated position in a man# ner which will be readily obvious without a more explicit description. After the wheel lhas been greased, or whenever it is desired to lower the axle, the lever C and bar D areV grasped in the hand and forced downwardly a slight distance, thereby relieving the strainon the bar D, after which the hand is closed, thereby disconnecting the serrated end of the bar D from'the pin n, and the lever raised, permitting the bar E to descend and the wheel to fall to the ground. v

It will be obvious Vthat the lever/C and bar D serve as a handle, by which vthe jack` may be readily lifted and placed in position for use, and also that but one hand is required to raise the wheel and lock the jack, or to unlock the jack and lower the Wheel-a very important feature in devices of this character,

as one hand is usually occupied in holdingthe wrench or oil-can. l

- It will also be obvious that instead of the IOO of metal and cast integral, if desired, it being understood that proper materials are to be used in the construction of all its parts, and that they are to be inade in a substantial and workman-like manner.

Having thus explained lny invention, what I claim isl. The improved carriage-jack herein described, the saine consisting of the base A, standards B B, sliding bar E, pitnian G, lever C, serrated retaining-bar D, stop-pin oz, pivots t h r, and guide-pins f f, constructed, coinbined, and arranged to operate substantially as set forth.

2. In a carriage-jack substantially such as described, the serrated bar D, pivoted at its outer end to the outer end of the lever C, said bar being arranged beneath said lever, in combination with the pin n, substantially as specified.

3. In a carriage-jack substantially such as described, in combination with the lever,y a retaining bar or device for locking said lever when it is depressed, said bar or device and lever being adapted to be grasped at the same time, and operated by one hand to unlock the lever and pei-init it to rise and the wheel to fall, substantially as set forth.

ANDREXV J. CHURCH. Witnesses:

JOSEPH DoUsE, J Us'rIN BULLARD. 

